Costco Sale: Tovolo Sphere Ice Molds 4-Pc $9.99 by Rhonda July 16, 2020 12/30/16. Create a seamless, 2.5″ diameter ice sphere and quickly cool your beverage with these cool looking ice balls. Costco has the Tovolo Sphere Ice Molds 4-Piece on sale for $9.99… 0 FacebookTwitterPinterestEmail